SL150变频器报F31131编码器偏差大分析--小H-20161017

我这BD主电机近期跳过两次电，故障代码及注释：F31131(N,A)Encoder1:Deviation,positionincremental/absolutetoolarge有几个问题弄不清楚，1、这个故障注释里的偏差，是哪两个值的偏差？偏差极限值多少？2、在我发你的PDA曲线里，滤波后的速度R0063为什么没有跟随速度实际值R0061，而是提前归零了？3、从编码器采集的速度值R0061与滤波后的速度值R0063，哪个速度参与系统控制计算？4、为什么故障发生后，系统停车到故障触发，时间间隔了0.13S左右，而不是故障信号触发，而后系统停车？5、F31131故障注释，解决方法，减少滤波时间p0438，为什么是减少呢？不应该是延长滤波时间么，速度更平滑些？答复：F31131(N,A)Encoder1:Deviation,positionincremental/absolutetoolargeMessagevalue:%1Driveobject:ENC,VECTORSLReaction:ENCODER(IASC/DCBRAKE,NONE,OFF1,OFF2,OFF3,STOP1,STOP2)Acknowledge:PULSEINHIBITCause:Absoluteencoder:Whencyclicallyreadingtheabsoluteposition,anexcessivelyhighdifferencetotheincrementalpositionwasdetected.Theabsolutepositionthatwasreadisrejected.Limitvalueforthedeviation:-EnDatencoder:Issuppliedfromtheencoderandisaminimumof2quadrants(e.g.EQI13252quadrants,EQN132550quadrants).-otherencoders:15pulses=60quadrants.Incrementalencoder:Whenthezeropulseispassed,adeviationintheincrementalpositionwasdetected.Forequidistantzeromarks,thefollowingapplies:-Thefirstzeromarkpassedsuppliesthereferencepointforallsubsequentchecks.Theotherzeromarksmusthaventimesthedistancereferredtothefirstzeromark.Fordistance-codedzeromarks,thefollowingapplies:-thefirstzeromarkpairsuppliesthereferencepointforallsubsequentchecks.Theotherzeromarkpairsmusthavetheexpecteddistancetothefirstzeromarkpair.Faultvalue(r0949,interpretdecimal):Deviationinquadrants(1pulse=4quadrants).Seealso:p0491(MotorencoderfaultresponseENCODER)Remedy:补救措施-checkthattheencodercablesareroutedincompliancewithEMC.检查是否符合电磁干扰规范-checktheplugconnections检查插头连接-replacetheencoderorencodercable更换编码器或电缆-checkwhetherthecodingdiskisdirtyortherearestrongambientmagneticfields.检查码盘是否脏，或者附近有强磁场-adapttheparameterfortheclearancebetweenzeromarks(p0425).调整参数P0425—零刻度之间间隙-ifmessageoutputabovespeedthreshold,reducefiltertimeifnecessary(p0438).如果有高于速度阈值的信息输出，减少滤波时间P0438r0061CO:Actualspeedunsmoothed/n_actunsmoothed没有经过滤波的实际速度r0063[0...2]CO:Speedactualvalue/n_act0]=Unsmoothed没有滤波[1]=Smoothedwithp0045通过P0045滤波[2]=Calculatedfromf_set-f_slip计算偏差：f_set-f_slip实际速度低于给定速度，偏差大59ms后，报出故障第一支钢的第一道次第二支钢的第一道次两支钢的第一道次，速度给定相差很大，和操作工有关，随意性太大，事故的最根本的原因是操作造成的，速度给定变化太快。措施：在操作手柄给定上加斜坡。